Shock-absorber.



sorber applied thereto.

' by leaving the housing comparatively ritocco.

, Be it kiown that I, ALLAN L; MoGnneoR, of the cityff Chicago, in' thecounty of Cook and Stateolllinois, have invented certain new sindusefullmprovements in Shock-Ab sorbers, of which. the following is aspecification.

The preferred embodiment of the invention. relates to a shock'absorberof the spring type for use upon motor vehicles wherein the spring iscompressed under the load and does not elongate as in manyr other types.of

spring shock-absorbers, While the housing remains stationary. Thus thepivotal motionis in the vspring shackle and the lever that is connectedto the spring shackle, therefree from Wear.

In' a further embodiment of the invention,

the housingl is pivotally connected to the spring shackle. ln bothconstructionsl a pw"- Y ote'dlever is employed that rests in a saddleupon top of a spiral spring, ing a more vvill be hereinafter more A is'atop plan in Fig.` l with the vehiclebody omitted.`

Fig. 3 is a vertical 'section of one of the shock absorbers shown-inFig. 1. Fig. 4 is a section on the line 4--4 of Fig. 3. vFig. 5is a sideelevational view 'of a ,full elliptic spring construction, with myimproved shock ab- Fign 6 is an enlarged detail view of my improvedshock absorber applied to tWjo springs yWith parts shown. in section. lp

Referring now mor particularly to the drawings, my improved shockabsorberin the preferred embodiment of the invention,-

comprises the housing 7 Witha hollow lug 8 for-med integral therewith.The upper end of the housing. is provided with a iange 9.

A cap l() incloses the upper end of the housing and is secured of screws1l. The

to the flange` 9 by meanslower end of the housing is provided'with abase piece 12'v that issuitably recessed 13 to receive the bolt 14.

.entiteit L recenseren, or cnrceeoinmuors."

snooinessoniann l Specification ofletters 4Patent. Application led'June1, 1914. Serial No. 842,016. The bolt 14 is secured to :the-base basepiece and tne the spiral y housing and y spring y retenues Jen. hiere.

l piece 12` by'drillingl through a .portion of bolt and `L Ieyingftheparts together by means of a key 15 Which-ma y be 6G provided withthreads tov receive the aradius. rod-` The 'lower end of the bolt 14. is

threaded nut ld Instead' of the bolt 15, a

radius rod of the vehicle may be ,usedfin will bel hereinafter more4placethereof as` y A! stud 17` rests .upon the fully explained.

bottoni 'of the housing 7 and is provided with a reduced.l portion 18.Within thedliousillgv is a large shock absorbing spring 19thelower endof which surrounds the stud `1'( "and Within the spring 19 is ai smallershock the lower end .offwhiych-a;

absorbing 'Spring 20,

surrounds the reduced portioi 18. A saddle V2l is providedvvith a'curvedllever sect2? "upon either side; of which are the lugs 23. A.lever 2li has one `end pivotally secured A lever 24 extends transverselyofthehcusing.resting upon formed in thehousing. Ajplate Q7 is slidablymounted within the l lever 24 by a pivot pin 30. The running gear of thevehicle shown in Fig. l, comprises an axle 3l upon i the curvedseat 22of the i saddle 21 andprojectsthrough'the slbiii y is provided withan'opening y 28' through which the lever 24 projects.' A i link 29 isconnected to the which the Wheels 32 aremountedand the 33 is supportedvehicle body ofthe spring 34e that 31 through. the medium is secured tothe Asupport shock absorbers are end of the spring. Each is secured tothe 35 bythe bolts 86.. In theconstruction shown in Fig. l, tvvo'employed, one for each upon theaXle 'axle Slby the boltslilpassingthrough suiti able bores in the axle. and held thereto by the nuts 16. y

The 'lever29 is forked atits lower endendv 34 is provided vwith( so thatby inserting the .ends of the.

each end 'of the spring .an eye between the forked end of each lever 29,the pivot pins 37 may the openings in 1,00- v y be passed through thelevers 29 'and ythe eyes` or bolt receiving openingsiny the` end of thelspring,

In a certain type of ruiming gear, radius rods 38 are employed whichare' connected to theaXle 3l in any suitable manner and l: have sodesigned my improved shook ab thereby the spring ends are pivotallyconnected to the vlevers 29.

sorber that the radius rods may -be connected 1i@ 75 y Withintlie hollowlug 8 by a pivot pin 25. .A 4

housin y receiving openings.

. shown in'Fig. 3 as the key,

the bolt 14 and the outer end of the radlus rods are provided with nuts39. It Will'be .readily seen from this construction that the radius4rods prevent separation' of the'housing from the bolt 14.

In Fig. 5 a slightly modified form ofchm i struction is shown wherein myimproved shock absorber is adapted for connection and use with aspringconstruction of either the full orsemi-elliptie type. In such acase the base piece 12 and the pin 14 are omitted and a pair of ,arms40. are secured to tle 7 on. opposite sides thereof. The endsA o thearms-40 are provided vwith bolt of which forked end, each part with abolt receiving opening.

The end of the spring 42 is provided with an eye 43 which. extendsbetween the arrrns 40 and the pin 44, pivotally, secures the end isprovided of the spring and arms together. One end A Vof thepring 45 isprovided with an eye 46 which extends between the forked ends of the'lever 41 andthe pin 47, seouresfqthe spring'45 .and lever 41 together.

this part in,-

- inthe lever 24 is pivoted 'spring therein, The lever 41 has a f yTheoperation of my improved shock absorber in both constructions hereinshown substantially the same in that as the bodv ot' the vehicle movesdownward under its load,

the spring or springs upon which it rests,

,also move downward and elongate. Conse- `quently, the lever 24 or 4l isactuated conn pressing. the springs 19 and 20 that serve to vabsorb theshock imparted thereto, lt is to be particularly noticed that the levers24 hnd 41 rest upon the' curved seat 22 of the .any manner; with' theresult that the levers rock upon their seat, resulting in less Wear totheparts and a more graduated absorbing of the shook than in theconstructionfwhere to the member that is connected to the spring.

Having now described my invention I claim:

A shook absorber comprising a housing, a

spring and having a curved seat, separated lugs on said saddler a leverpivotally connected to said housing and adapted to rest on said curvedseat'between said lugs, and a slot in said housing through which saidlever projects.

l ALLAN L. MGREGOR.

Vitnesses: i'

SADIE M. RYA, Ams S. HERNIMAN.

saddle 214and are not connected thereto in l a saddle secured to said

